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- Title
不同价态锑对蚓触圈细菌群落多样性和结构的影响.
- Authors
陈琳玉; 张希尧; 冯沛源; 罗甲豪; 杨晓琦; 邓宇洋; 郑玉; 段仁燕; 白婧
- Abstract
Earthworms were exposed to soils contaminated with Sb(Ⅲ) and(or) Sb(Ⅴ) to study the differences in microbial community structure of drilosphere(gut and burrow lining) before and after the disturbance and digestion of Sb-contaminated soil by earthworms. The result shows that:the microbial diversity of earthworm gut, burrow lining, and control soil is significantly different. With the increase in culture time and Sb concentration, the Chao1 index, Shannon index, and Pielou index of the drilosphere matrix significantly reduced. The drilosphere presents a unique microbial community structure, and the relative abundances of Comamonas_testosteroni, Sphingobacterium_faecium, and Sphingobacterium_multivorum are higher than that of other species in high-concentration compositetreated burrow lining soil. Combined with the correlation analysis, this shows that the above three species may play a positive role in the mediating transformation of Sb(Ⅲ) . According to redundancy analysis, there is a positive correlation between Bacteroidetes and Sb(Ⅲ) content in soil; Proteobacteria is positively correlated with the content of Sb(Ⅲ), Sb(Ⅴ), and community coverage, indicating their resistance to Sb. Thus, the drilosphere is a potential thermal zone for the microbial-mediated transformation of Sb morphology.
- Subjects
EISENIA foetida; MICROBIAL diversity; ANTIMONY
- Publication
Journal of Agro-Environment Science, 2023, Vol 42, Issue 12, p2763
- ISSN
1672-2043
- Publication type
Article
- DOI
10.11654/jaes.2023-0587